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Add decoding of sequences to built-in replication

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This commit adds support for decoding of sequences to the built-in
replication (the infrastructure was added by commit 0da92dc530).

The syntax and behavior mostly mimics handling of tables, i.e. a
publication may be defined as FOR ALL SEQUENCES (replicating all
sequences in a database), FOR ALL SEQUENCES IN SCHEMA (replicating
all sequences in a particular schema) or individual sequences.

To publish sequence modifications, the publication has to include
'sequence' action. The protocol is extended with a new message,
describing sequence increments.

A new system view pg_publication_sequences lists all the sequences
added to a publication, both directly and indirectly. Various psql
commands (\d and \dRp) are improved to also display publications
including a given sequence, or sequences included in a publication.

Author: Tomas Vondra, Cary Huang
Reviewed-by: Peter Eisentraut, Amit Kapila, Hannu Krosing, Andres
             Freund, Petr Jelinek
Discussion: https://postgr.es/m/d045f3c2-6cfb-06d3-5540-e63c320df8bc@enterprisedb.com
Discussion: https://postgr.es/m/1710ed7e13b.cd7177461430746.3372264562543607781@highgo.ca
This commit is contained in:
Tomas Vondra
2022-03-24 18:20:21 +01:00
parent 0adb3dc68b
commit 75b1521dae
40 changed files with 3236 additions and 469 deletions
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28
src/backend/utils/cache/relcache.c vendored
View File

@@ -56,6 +56,7 @@
#include "catalog/pg_opclass.h"
#include "catalog/pg_proc.h"
#include "catalog/pg_publication.h"
#include "catalog/pg_publication_namespace.h"
#include "catalog/pg_rewrite.h"
#include "catalog/pg_shseclabel.h"
#include "catalog/pg_statistic_ext.h"
@@ -5562,6 +5563,8 @@ RelationBuildPublicationDesc(Relation relation, PublicationDesc *pubdesc)
Oid schemaid;
List *ancestors = NIL;
Oid relid = RelationGetRelid(relation);
char relkind = relation->rd_rel->relkind;
char objType;
/*
* If not publishable, it publishes no actions. (pgoutput_change() will
@@ -5588,8 +5591,15 @@ RelationBuildPublicationDesc(Relation relation, PublicationDesc *pubdesc)
/* Fetch the publication membership info. */
puboids = GetRelationPublications(relid);
schemaid = RelationGetNamespace(relation);
puboids = list_concat_unique_oid(puboids, GetSchemaPublications(schemaid));
objType = pub_get_object_type_for_relkind(relkind);
puboids = list_concat_unique_oid(puboids,
GetSchemaPublications(schemaid, objType));
/*
* If this is a partion (and thus a table), lookup all ancestors and track
* all publications them too.
*/
if (relation->rd_rel->relispartition)
{
/* Add publications that the ancestors are in too. */
@@ -5601,12 +5611,23 @@ RelationBuildPublicationDesc(Relation relation, PublicationDesc *pubdesc)
puboids = list_concat_unique_oid(puboids,
GetRelationPublications(ancestor));
/* include all publications publishing schema of all ancestors */
schemaid = get_rel_namespace(ancestor);
puboids = list_concat_unique_oid(puboids,
GetSchemaPublications(schemaid));
GetSchemaPublications(schemaid,
PUB_OBJTYPE_TABLE));
}
}
puboids = list_concat_unique_oid(puboids, GetAllTablesPublications());
/*
* Consider also FOR ALL TABLES and FOR ALL SEQUENCES publications,
* depending on the relkind of the relation.
*/
if (relation->rd_rel->relkind == RELKIND_SEQUENCE)
puboids = list_concat_unique_oid(puboids, GetAllSequencesPublications());
else
puboids = list_concat_unique_oid(puboids, GetAllTablesPublications());
foreach(lc, puboids)
{
@@ -5625,6 +5646,7 @@ RelationBuildPublicationDesc(Relation relation, PublicationDesc *pubdesc)
pubdesc->pubactions.pubupdate |= pubform->pubupdate;
pubdesc->pubactions.pubdelete |= pubform->pubdelete;
pubdesc->pubactions.pubtruncate |= pubform->pubtruncate;
pubdesc->pubactions.pubsequence |= pubform->pubsequence;
/*
* Check if all columns referenced in the filter expression are part of